CN104145076B - Downhole fluid flow control system having pressure sensitive autonomous operation - Google Patents
Downhole fluid flow control system having pressure sensitive autonomous operation Download PDFInfo
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- CN104145076B CN104145076B CN201280071026.4A CN201280071026A CN104145076B CN 104145076 B CN104145076 B CN 104145076B CN 201280071026 A CN201280071026 A CN 201280071026A CN 104145076 B CN104145076 B CN 104145076B
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- pressure
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- fluid
- sensitive valve
- pressure signal
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/14—Obtaining from a multiple-zone well
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- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Flow Control (AREA)
- Details Of Valves (AREA)
- Control Of Fluid Pressure (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Fluid-Driven Valves (AREA)
Abstract
A downhole fluid flow control system is operable to be positioned in a wellbore in a fluid flow path between a formation and an internal passageway of a tubular. The system includes a flow control component positioned in the fluid flow path that is operable to control fluid flow therethrough. The system also includes a pressure sensitive valve positioned in the fluid flow path in parallel with the flow control component. The valve autonomously shifts from a first position to a second position responsive to a change in a pressure signal received by the valve, thereby enabling fluid flow therethrough.
Description
Technical field
The present invention relates generally to the equipment being used together with the operation performed in missile silo, and more particularly to a kind of
Using pressure-sensitive autonomous operation device with control Jing its flowing fluid downhole fluid flow control system and method.
Background technology
Below will be to describe background technology of the invention as an example from hydrocarbon containing formation production fluid, this is not intended to limit
The scope of the present invention.
During the completion through hydrocarbon containing formation, flow string and various completion equipments are installed in well, so that stratum
The production of the safe and effective rate of fluid can be carried out.For example, in order to prevent from the loose or loose stratum output for combining
Grain material, some completions include being arranged at one or more the sand control screen banks near one or more desired production sections
Part.In other completions, in order to control production fluid to flow string in flow velocity, common practice is that one is installed in tubing string
Individual or multiple flow control apparatus.
Have attempted to utilize fluid flow control device in the completion for need sand control.For example, in some sand control screen assemblies
In, after production fluid flows through filter medium, fluid is drawn towards in flowing control sections.Flowing control sections may include one
Or multiple flowing controling parts, such as flow tube, nozzle, labyrinth type part or similar component.Typically, by these flowing control sieves
Production flow resistance be before the mounting, to be fixed up by the quantity and design of flowing controling part.
However, it has been found that due to the change of strata pressure in the whole life-span of well and the change of formation fluid composition,
People can expect the flowing control characteristic for adjusting flowing control sections.In addition, for some completions, it is therefore desirable to be adjustment stream
The flowing control characteristic of dynamic control sections is without well workover intervention (well intervention).
Accordingly, it would be desirable to a kind of operable downhole fluid flow control system to control the inflow of formation fluid.In addition, this
The downhole fluid flow control system of sample needs to be integrated in flowing control sieve.And, the flowing of such downhole fluid is controlled
The needing of system processed increases, i.e. the operable production curve with when well of the downhole fluid flow control system changes with the time
During change, the flowing control characteristic of downhole fluid flow control system is can adjust without well workover intervention.
The content of the invention
The present invention disclosed here includes the downhole fluid flow control system for controlling the inflow of formation fluid.Separately
Outward, during downhole fluid flow control system of the invention is operable to be integrated into flowing control sieve.And, current down-hole stream
Body flow system is operable with when the production curve of well is changed over, and adjusts downhole fluid flow control system
Flowing control characteristic is without well workover intervention.
In an arrangement, the present invention relates to a kind of downhole fluid flow control system, its is operable with along positioned at pipeline
Inner passage and stratum between fluid flow path be set in the wellbore.The system includes being arranged on flow of fluid road
Flowing controling part in footpath, the operable flowing that the fluid flow path is passed through with control fluid of the fluid flow path.Pressure
Quick valve is arranged in the fluid flow path parallel with flowing controling part.The change of the pressure signal that response is received by the valve
Change, the valve is displaced to the second position from first position autonomous (automatic), thus enables a fluid to flow through.
In one embodiment, flowing controling part is inflow control device.In another embodiment, flowing controling part
With the flow resistance depending on direction.In other embodiments, pressure sensitive valve includes sliding sleeve.In such embodiments, it is pressure-sensitive
Valve may include biasing element as such as mechanical spring or fluid spring, at least one point of the biasing element and pressure signal
Amount on the contrary offsets sliding sleeve.Pressure signal can be the boring pressure (borehole produced by formation fluid
Pressure), loine pressure or boring pressure and pipeline pressure in the pressure reduction form between boring pressure and loine pressure
Power sum.
In another arrangement, the present invention relates to a kind of flowing control sieve, its is operable being set in the wellbore.The flowing
Control sieve includes the base tube with inner passage.Filter medium is disposed about base tube.Housing is disposed about base tube limit
Make the fluid flow path between filter medium and inner passage.At least one flowing controling part is arranged on fluid
In flow path, and the operable flowing that the flowing controling part is passed through with control fluid.Pressure sensitive valve is arranged on flow of fluid
It is in path and parallel with least one flowing controling part.The change of the pressure signal that the response valve is received by the valve, from
One position is independently displaced to the second position, thus enables a fluid to flow through.
In another arrangement, the present invention relates to a kind of downhole tool, its it is operable with along be located at the inner passage of pipeline with
Fluid flow path between stratum is set in the wellbore.The instrument include pressure sensitive valve, the pressure sensitive valve it is operable with respond by
The change of the pressure signal that the valve is received, from first position the second position is independently displaced to, wherein, at least the one of pressure signal
Individual component is the boring pressure produced by formation fluid.
In yet another aspect, the present invention relates to a kind of downhole fluid flow control method.The method includes：One fluid is set
Flow system, the fluid flow control system has flowing controling part and pressure sensitive valve parallel to each other；By flow of fluid
Set-up of control system is in the wellbore so that flowing controling part and pressure sensitive valve are arranged on positioned at the inner passage and stratum of pipeline
Between fluid flow path in；By flowing controling part producing formation fluid；Respond the pressure received by pressure sensitive valve to believe
Number, the valve is maintained at into first position, wherein, at least one component of pressure signal is the drilling pressure produced by formation fluid
Power；The change of response pressure signal, makes pressure sensitive valve independently be displaced to the second position from first position；And given birth to by pressure sensitive valve
Place of production layer fluid.
The method may also include：Response pressure signal and pressure sensitive valve is maintained in its closed position；By mechanical spring or stream
Body spring makes pressure sensitive valve offset towards open position；Pressure sensitive valve is independently moved from closed position in response to the reduction of boring pressure
Position is to open position, and/or pressure sensitive valve is independently displaced to into open position from closed position in response to the change of loine pressure.
Description of the drawings
Feature and advantage for a more complete understanding of the present invention, retouching in detail together with accompanying drawing with reference to of the invention now
State, in the accompanying drawings, the corresponding reference in different accompanying drawings refers to corresponding part, and in the accompanying drawings：
Fig. 1 is the signal of the well system for operating downhole fluid flow control systems multiple according to an embodiment of the invention
Figure；
Fig. 2A-Fig. 2 B are that the downhole fluid flow control system being embodied as in the flowing control sieve of the present invention is in
The a quarter sectional view of the continuous axial segments of the first productive structure；
Fig. 3 is that the flowing control sections shell of downhole fluid flow control system according to an embodiment of the invention is removed
Partial Resection top view；
Fig. 4 be the present invention flowing control sieve in be embodied as downhole fluid flow control system in second life
Produce a quarter sectional view of the axial segments of construction；
Fig. 5 is the sectional view of the flowing control sections of downhole fluid flow control system according to an embodiment of the invention；
Fig. 6 is the sectional view of the flowing control sections of downhole fluid flow control system according to an embodiment of the invention；
Fig. 7 is the sectional view of the flowing control sections of downhole fluid flow control system according to an embodiment of the invention；
Fig. 8 is the sectional view of the flowing control sections of downhole fluid flow control system according to an embodiment of the invention；
Fig. 9 is the sectional view of the flowing control sections of downhole fluid flow control system according to an embodiment of the invention；
Figure 10 is the sectional view of the flowing control sections of downhole fluid flow control system according to an embodiment of the invention；
And
Figure 11 is the sectional view of the flowing control sections of downhole fluid flow control system according to an embodiment of the invention.
Specific embodiment
Although it is discussed more fully below the present invention multiple embodiments manufacture and use, it should be appreciated that the present invention provide
What many can be embodied as under various specific linguistic context can application invention concept.Specific embodiment discussed herein is only
Manufacture and the example of the specific method using the present invention, and do not limit the scope of the invention.
With reference first to Fig. 1, a kind of well system including multiple downhole fluid flow control systems, the well system are there is shown with
It is schematically shown and is referred to reference " 10 ", these downhole fluid flow control systems is arranged on flowing control
In sieve, these flowing control sieves are embodied as the principle of the present invention.In the illustrated embodiment, well 12 is extended through multiplely
Ball stratum.Well 12 has generally vertical sections 14, and the top of the generally vertical sections is applied in cement and consolidates in the well
Surely casing string 16 is arrived.Well 12 also has basic horizontal section 18, and the basic horizontal section extends through hydrocarbon containing formation 20.As schemed
Shown, the basic horizontal section 18 of well 12 is bore hole.
Tubing string 22 is positioned in well 12 and extends from ground.Tubing string 22 formed pipeline, for make formation fluid from
Stratum 20 advances to ground, and for making injection fluid advance to stratum 20 from ground.The lower end of tubing string 22 be connected to by
It is divided into the completion tubular column of multiple production sections of adjacent formations 20 in well 12 and by completion section.Completion tubular column bag
Include it is multiple flowing control sieve 24, each flowing control sieve be arranged on be illustrated as packer 26 (packer 26 completion tubular column with
There is provided fluid-tight between well 12) a pair annular barriers between, so as to limit production section.In the embodiment for illustrating
In, flowing control sieve 24 plays the work(being filled into particulate matter outside production fluid stream (production fluid stream)
Energy.Each flowing control sieve 24 also has flowing control sections, the operable stream to control its flowing of Jing of flowing control sections
Body.For example, the operable flowing to control production fluid stream during production phase for operating in well of flowing control sections.It is substituting
Ground or additionally, the operable flowing with control injection fluid stream during processing stage well is operated of flowing control sections.
As being described more particularly below, flowing control sections is operable, as strata pressure reduces, to be controlled with the whole life-span of well
The inflow of production fluid processed, so that the production such as the expectation fluid of oil etc is maximized, without well workover intervention.
Although Fig. 1 illustrates the flowing control sieve of the invention in bore hole environment, it will be understood by those skilled in the art that
It is that the present invention is equally also suitable for used in cased hole.And, although Fig. 1 shows one in each production section
Flowing control sieve, but it will be understood by those skilled in the art that the flowing control sieve of any amount of present invention can be provided in
In producing in section or being provided in the completion section for not including production section, without departing from the principle of the present invention.Though in addition,
So Fig. 1 illustrates flowing control sieve of the invention in the horizontal section of well, but it will be understood by those skilled in the art that originally
Invention is equally applicable to used in the well with other directivity construction, these wells include Vertical Well, deviate well, slant well,
Multilateral Wells and similar well.Therefore, it will be understood by those skilled in the art that as top, lower section, top, bottom, upwards,
Downwards, on left and right, well, the use of down-hole and similar direction term be relative to exemplary embodiment, according to shown in accompanying drawing
These exemplary embodiments for going out and use, upward direction is directed towards the top of respective figure, and be in downward direction directed towards it is right
The bottom of accompanying drawing is answered, direction is directed towards the earth's surface of well on well, and down-hole direction is directed towards the toe (toe) of well.And, although figure
1 shows flowing controling part in the flowing control sections of flowing control sieve, but it will be understood by those skilled in the art that
The flowing controling part of the present invention need not control related or completion tubular column the part of sieve to flowing, for example, flowing control
Part processed can be operably disposed in well drilling pipe column, for drill stem testing.
Referring next to Fig. 2A-Fig. 2 B, the continuous axial segments of flowing control sieve of the invention are illustrated therein is,
These axial segments are illustrated with representative manner and are generally referred to reference " 100 ".Flowing control sieve 100 can be suitable
Be connected to other similar flowings control sieve, production packer, landing nipple, production pipe or other downhole tools, to shape
Into completion tubular column as above.Flowing control sieve 100 includes base tube 102, and the base tube has non-porous tube segment 104 and perforation section
Section 106, the perforation sections includes multiple production ports 108 and multiple bypass ports 110.On the well of non-porous tube segment 104
Part is provided with screen element or filter medium 112, screen element or filter medium 112 be, for example, around bolting silk, mesh grid hole sizer,
Pre-filled sieve or homologue, around screen element or filter medium outer housing is provided with or without, the screen element or filtration
Medium is designed to allow its flowing of fluid Jing, but prevents its flowing of the particulate matter Jing of preliminary dimension.However, art technology
Personnel will be understood that, the present invention and need not with filter medium associated with it, therefore, the accurate design of filter medium for
It is of the invention and non-key.
The down-hole side of filter medium 112 is provided with sieve interface hull 114, and sieve interface hull 114 forms ring together with base tube 102
Empty 116.Flowing control housing 118 by be solidly associable to sieve interface hull 114 downhole end, flowing control housing 118 with
Base tube 102 forms together annular space 120.The downhole end of flowing control housing 118 is solidly associable to support component 122, should
Support component can be fixedly coupled to base tube 102.Multiple connections of these parts of flowing control sieve 100 can be by including weldering
Connect, be spirally connected and any appropriate mode such as similar connection is formed, and by selling, Positioning screw and homologue etc. it is tight
Firmware using being formed.
Flowing control sieve 100 has the flowing control sections being located in flowing control housing 118, the flowing control sections bag
Include multiple flowing controling parts 124 and bypass sections 126.In the illustrated embodiment, flowing controling part 124 is with 120
Degree interval is circumferentially distributed around base tube 102, thus three flowing controling parts 124 of setting (as most preferably seen in Fig. 3,
Flowing control housing 118 is removed in this figure).Although having been described above the specific arrangements mode of flowing controling part 124, this
Art personnel should be understood that the flowing controling part 124 that can also use other quantity and arrangement.For example, can make
With it is more or less it is quantity, being uniformly or non-uniformly spaced the flowing controling part 124 being circumferentially distributed.Additionally
Or alternatively, flowing controling part 124 can longitudinally be distributed along base tube 102.As illustrated, each flowing controling part 124
Formed by internal flow control element 128 and flows outside control element 130, in figure 3 flows outside control element is from one
It is removed on flowing controling part 124, to contribute to the description present invention.Each flowing controling part 124 has flow of fluid road
Footpath 132, the fluid flow path includes a pair of fluid ports 134, minor air cell 136 and ports 140.In addition, flowing controling part
124 have multiple fluid guiding pieces 142, and these fluid guiding pieces are located in minor air cell 136.
Flowing controling part 124 is operable to control fluid in either direction through the flowing of flowing controling part, and
There can be the flow resistance depending on direction, wherein, compared with injection fluid, production fluid can when through flowing controling part 124
The bigger pressure drop of experience.For example, during processing stage well is operated, treatment fluid can be from the inner passage 144 of base tube 102
Surface to down-hole be pumped (see Fig. 2A-Fig. 2 B).Then, treatment fluid enters flowing controling part 124 through port 140,
And through minor air cell 136, in minor air cell, desired flow resistance is applied to flow of fluid, be achieved in desired pressure drop and
Through the flow velocity of minor air cell.In the illustrated example, the treatment fluid into minor air cell 136 is being left through fluid port 134
Before, primarily radially advance in minor air cell 136, almost without spiral in minor air cell 136, and do not experience rubbing for correlation
Wipe and be centrifuged loss.Therefore, the injection fluid through flowing controling part 124 does not almost meet obstructions, and does not receive relatively
Ground is hindered to pass through, so as to compared with production decision, make flow velocity much higher and pressure drop is significantly reduced.Then, fluid is entering annular space
116 and through filter medium 112 with before being injected in the stratum of surrounding, advance to positioned at base tube 102 with flowing control shell
In annular region 120 between body 118.
Similarly, during the production phase of well operation, fluid is flowed to life from stratum by fluid flow control system 100
In producing tubing string.Production fluid by filter medium 112 (if there is filter medium) by filtration after, production fluid stream
In entering annular space 116.Then, fluid was advanced to positioned at base tube 102 and flowing control housing before flowing control sections is entered
In annular region 120 between 118.Then, fluid enters the fluid port 134 of flowing controling part 124, and through vortex
Room 136, in minor air cell, desired flow resistance is applied to flow of fluid, so as to realize desired pressure drop and flow velocity by minor air cell.
In the illustrated example, the production fluid into minor air cell 136 is mainly tangentially advanced, and is moved back port 140 is eventually passed
Before going out, screw will be carried out around minor air cell 136 by fluid guiding piece 142.Around the stream of the screw of minor air cell 136
Body is subjected to friction loss.And, tangential velocity produces the centrifugal force for hindering Radial Flow.Therefore, through flowing controling part 124
Production fluid run into significant resistance.Hereafter, fluid is discharged into the inner passage 144 of base tube 102 through opening 108, uses
In production to ground.Although particular flow control unit 124 is shown and described, it would be recognized by those skilled in the art that can
Using other flowing controling parts designed with replaceability, without departing from the principle of the present invention, these flowing controling part bags
Include (but not limited to) inflow control device, mjector, Venturi, fluid diode and similar installation.
In the illustrated embodiment, bypassing sections 126 includes being illustrated as the piston of ring-shaped slide sleeve pipe 142, and the annular is sliding
Dynamic sleeve pipe 142 is slidably and sealingly arranged in the annular region 145 between support component 122 and base tube 102.
As illustrated, sliding sleeve 142 includes：Three outer seals 146,148,150, these outer seals are sealingly engaged and propped up
The inner surface of support component 122；And three inner seals 152,154,156, these inner seals sealingly engage base tube
102 outer surface.Sliding sleeve 142 also includes one or more bypass ports 158, and bypass port 158 is extended radially through
Sliding sleeve 142.Bypass port 158 can circumferentially be distributed around sliding sleeve 142, and can be with the one of base tube 102 or many
Individual bypass port 110 is circumferentially aligned.Bypass port 158 is arranged between outer seal 148,150, and inner sealing
Between part 154,156.And, the mechanical bias element for being illustrated as wavy spring 160 is additionally provided with annular region 145.Although
Specific mechanical bias element is shown, it will be recognized to those skilled in the art that also alternatively (can using such as wind spring
Being compression spring) etc mechanical bias element, without departing from the principle of the present invention.Support component 122 and flowing control shell
Body 118 forms together annular space 162.Support component 122 includes：Multiple operation ports 164, it can be circumferential around support component 122
Ground distribution；And multiple bypass ports 166, it can circumferentially be distributed around support component 122, and can be with sliding sleeve 142
Bypass port 158 be circumferentially aligned.
Will now describe the operation of bypass sections 126.Early stage the life-span of well, formation fluid is existed with relatively high pressure
Well is entered at multiple production sections.As described above, flowing controling part 124 is used for control into the pressure of the fluid of completion tubular column
Power and flow velocity.Meanwhile, produced by formation fluid, around flowing control sieve 100, next self-drilling Fluid pressure enters annular space
162, and through operation port 164, the pressure signal that spring 160 compresses is acted on sliding sleeve 142 and makes to provide,
As most preferably seen in Fig. 2 B.In the operative configuration, the bypass port 158 of sliding sleeve 142 not with support component 122
The bypass port 110 of bypass port 166 or base tube 102 is in fluid communication.This is considered as the valve closed position of sliding sleeve 142,
It prevents production fluid from flowing through sliding sleeve.As long as strata pressure (here is also referred to as annular pressure) overcomes enough spring
160 biasing force, sliding sleeve 142 will remain in valve closed position.However, as well is aging, strata pressure will decline,
This causes the change for acting on the pressure signal on sliding sleeve 142.When strata pressure reaches predeterminated level, wherein, pressure letter
When number being not enough to overcome the biasing force of spring 160, sliding sleeve 142 just will independently be displaced to valve open position from valve closed position
Put, as most preferably seen in Fig. 4.In the operative configuration, bypass port 158 and the support component 122 of sliding sleeve 142
The bypass port 110 of bypass port 166 and base tube 102 is in fluid communication.Now, formation fluid will mainly through bypass sections
126, from the Annular cutting around flowing control sieve 100 to the inside 144 of flowing control sieve 100.In this configuration, due to ground laminar flow
Body will generally bypass the high-drag by flowing controling part 124, so flow resistance is significantly reduced.By this way, due to
Pressure drop into the formation fluid experience of completion tubular column reduces, so the flowing control characteristic of flowing control sieve 100 can be by certainly
Adjust mainly such that it is able to improve yield.
Referring next to Fig. 5, illustrated therein is and generally referred to according to an embodiment of the invention with reference " 200 "
The flowing control sections of downhole fluid flow control system.The flowing control sections 200 for illustrating includes base tube 202, the base tube tool
There are production port 204 and bypass port 206.Sieve interface hull 208 forms annular space 210 together with base tube 202.Flowing control housing
212 downhole ends for being solidly associable to sieve interface hull 208, flowing control housing forms annular space together with base tube 202
214.The downhole end of flowing control housing 212 is solidly associable to support component 216, and the support component can regularly be joined
It is connected to base tube 202.Flowing control sections 200 also includes multiple flowing controling parts 218, the behaviour of multiple flowing controling parts 218
Make similar to above-mentioned flowing controling part 124.In addition, flowing control sections 200 includes bypass sections 220.
Similar to above-mentioned bypass sections 126, bypassing sections 220 includes being illustrated as the piston of ring-shaped slide sleeve pipe 222, the ring
Shape sliding sleeve is slidably and sealingly arranged in the annular region 224 between support component 216 and base tube 202
In.As illustrated, sliding sleeve 222 includes：Three outer seals 226,228,230, it sealingly engages support component 216
Inner surface；And three inner seals 232,234,236, it sealingly engages the outer surface of base tube 202.Sliding sleeve
222 also extend radially through the bypass port 238 of sliding sleeve 222 including one or more.Bypass port 238 can be around cunning
Dynamic sleeve pipe 222 is circumferentially distributed, and can circumferentially be aligned with one or more bypass ports 206 of base tube 202.Bypass port
Between 238 externally-located sealing members 228,230 and between inner seal 234,236.Diagram is additionally provided with annular region 224
For the offset component of fluid spring 240, the fluid spring includes the compressible fluids such as nitrogen, air or homologue.Support
Component 216 forms annular space 242 together with flowing control housing 212.Support component 216 includes：Multiple operation ports 244, it can
Circumferentially it is distributed around support component 216；And multiple bypass ports 246, it can circumferentially be distributed around support component 216,
And can circumferentially be aligned with the bypass port 238 of sliding sleeve 222.
The operation of bypass sections 220 will now be described.As described above, early stage the life-span of well, formation fluid is with relative
Higher pressure enters well at multiple production sections, therefore flowing controling part 218 is used to control and enters completion tubular column
Fluid pressure and flow velocity.Meanwhile, formation fluid enters annular space 242, and through operation port 244, is acted on providing
On sliding sleeve 222 and compression fluid spring 240 pressure signal so that the bypass port 238 of sliding sleeve 222 not with base
The bypass port 206 of pipe 202 or the bypass port 246 of support component 216 are aligned, and close so as to bypass sections 220 is placed on into valve
Closed position, as most preferably seen in Fig. 5.As long as strata pressure be enough to overcome the biasing force of fluid spring 240, sliding sleeve
222 will remain in valve closed position, however, because strata pressure declines and reach predeterminated level with the time, wherein, pressure
Signal is no longer able to overcome the biasing force of spring 240, and in the illustrated embodiment, sliding sleeve 222 just will be from valve closed position
Independently shifted left is to valve open position, this enable a fluid to via bypass port 246,238,206 (these bypass ports that
This fluid communication) flow through bypass sections 220.In this configuration, because formation fluid will be bypassed generally by the control unit that flows
The high-drag of part 218, so flow resistance is significantly reduced, thus because the pressure drop of the formation fluid experience into completion tubular column reduces
Improve yield.
Referring next to Fig. 6, illustrated therein is and generally referred to according to an embodiment of the invention by reference " 300 "
The flowing control sections of downhole fluid flow control system.The flowing control sections 300 for illustrating includes base tube 302, and base tube 302 has
There are production port 304, bypass port 306 and operation port 307.Sieve interface hull 308 forms annular space 310 together with base tube 302.
Flowing control housing 312 is solidly associable to sieve the downhole end of interface hull 308, flowing control housing 312 and base tube 302
Annular space 314 is formed together.The lower end of flowing control housing 312 is solidly associable to support component 316, the support component quilt
Base tube 302 can be fixedly coupled to.Flowing control sections 300 also includes multiple flowing controling parts 318, multiple flowing control units
The operation of part 318 is similar to the operation of above-mentioned flowing controling part 124.In addition, flowing control sections 300 includes bypass sections
320。
Similar to above-mentioned bypass sections 126, bypassing sections 320 includes being illustrated as the piston of ring-shaped slide sleeve pipe 322, should
Ring-shaped slide sleeve pipe is slidably and sealingly arranged in the annular region 324 between support component 316 and base tube 302
In.As illustrated, sliding sleeve 322 includes：Three outer seals 326,328,330, it sealingly engages support component 316
Inner surface；And three inner seals 332,334,336, it sealingly engages the outer surface of base tube 302.Sliding sleeve
322 also extend radially through the bypass port 338 of sliding sleeve 322 including one or more.These bypass ports 338 can enclose
Circumferentially it is distributed around sliding sleeve 322, and can be circumferentially aligned with one or more bypass ports 306 of base tube 302.Bypass
Between the externally-located sealing member 326,328 in port 338 and between inner seal 332,334.And, in annular region 324
It is additionally provided with the offset component for being illustrated as wavy spring 340.Support component 316 forms annular space together with flowing control housing 312
342.Support component 316 includes：Multiple operation ports 344, it can circumferentially be distributed around support component 316；And multiple sides
Go side mouth 346, it can circumferentially be distributed around support component 316, and can be circumferential with the bypass port 338 of sliding sleeve 322
Ground alignment.
The operation of bypass sections 320 will now be described.Different from above-mentioned bypass sections (in above-mentioned bypass sections,
The pressure signal that sliding sleeve is received is the absolute pressure signal from the annular space around downhole fluid flow control system),
In the present embodiment, pressure signal is pressure difference signal, and the one-component of pressure difference signal is via the annular space pressure of operation port 344
Power, and another component of pressure difference signal is the loine pressure via operation port 307.In the illustrated embodiment, in order to will be sliding
Dynamic sleeve pipe 322 is from closed position operation (as shown in Figure 6) to open position, and the pressure reduction between annular pressure and loine pressure is necessary
Spring biasing force is overcome enough.In other words, annular pressure component of signal must enough overcome spring biasing force to believe with loine pressure
Number component sum.In one embodiment, spring biasing force is selected as, the flowing in desired pressure and annular space and pipeline
Under mechanism so that sliding sleeve 322 is in the closed position during standard production operation.If however, line pressure signal point
Amount drops to below predeterminated level, and sliding sleeve 322 just will automatically be displaced to open position.Because well is changed over time
Or can be changed due to Operator action, the reduction of line pressure signal component can independently occur.In latter feelings
Under condition, for example, operator can open choke valve on ground, with the exhaustive exploitation well, this reduces the bottom outlet in well
Pressure, and increase the pressure reduction on bypass sections 320.This change for acting on pressure signal on sliding sleeve 322 can be by
Sliding sleeve is operated to open position from closed position.
In the well with multiple flow systems, as shown in figure 1, the pressure signal produced by exhaustive exploitation well
Change will tend to operate the well in all flow systems.Alternatively, operator can want displacement only some flowings
Control system.This for example can be realized using coil system, the coil system it is operable with desired position by lighter stream
Body is injected in well, is reduced with the local for producing line pressure signal component, and this local reduces can be by one or more flowings
Control system is detected.For example, because nitrogen bubble is advanced on well, so nitrogen bubble is injected in producing well or non-producing well
In, the local that will produce line pressure signal component from the well of decanting point and point upside reduces.Therefore, positioned at injection phase
The flow system of (decanting point) and those flow systems on the upside of the well of injection phase will successively experience pipeline
The local of pressure signal component reduces.Act on pressure signal on sliding sleeve 322 this change can by sliding sleeve from
Closed position operation is to open position.Alternatively, coil pipe can be used to that fluid is pumped or is drawn into outside well, and this can also cause life
The local for producing the line pressure signal component in well reduces, or non-producing well or the line pressure signal component in closed-in well
It is overall to reduce.In either case, the change for acting on the pressure signal on sliding sleeve 322 can be by sliding sleeve from close stance
Operation is put to open position.
Although the change of pressure signal is described as causing valve to operate to open position, this area skill from closed position
Art personnel should be understood that the change of pressure signal alternatively causes valve to operate to closed position from open position.For example,
Once local loine pressure reduce pass by, once or exhaustive exploitation operation be over, act on sliding sleeve 322
Pressure signal just will change again, and in the illustrated embodiment, sliding sleeve 322 will be caused to return in Fig. 6 and to be illustrated
Closed position.Additionally, it may be desirable to be to ensure that sliding sleeve 322 is not displaced to the second position from first position, until
Till the predetermined time.In order to control the first operation of sliding sleeve 322, one or more locking members can be used to head
First sliding sleeve 322 is connected to into support component 316, as most preferably seen in Fig. 7, locking member is illustrated as crisp matter element
350, crisp matter element 350 is, for example, shear pin, shear screw or similar components.In this embodiment, in order that sliding sleeve 322
Can shift between open and closed positions, acting on the absolute pressure on sliding sleeve 322 must rise to first enough
Level, to shear crisp matter element 350.Absolute pressure necessary to shear crisp matter element 350 can be by according to bypass sections
320 accurate construction is lifted or reducing loine pressure and realize.Although locking member has been illustrated and has been described as crisp matter element
350, but other kinds of locking member also can alternatively be used the principle without departing from the present invention, these locking member bags
Include (but not limited to) chuck component, pawl assembly or other mechanical components.
In addition to valve is shifted between open and closed positions, the change of pressure signal can be used to make sliding sleeve
It is circulated by the position of multiple positions or infinite series.As most preferably seen in Fig. 8, support component 316 may include one
Individual or multiple pins 360, these pins are extended in the J-shaped groove 362 of the outside of sliding sleeve 322.In this embodiment, act on
The change of the pressure signal on sliding sleeve 332 causes sliding sleeve 332 relative to support component 316 and the longitudinal direction of base tube 302
Ground displacement, and also cause pin 360 to slide in J-shaped groove 362.Depending on the design of J-shaped groove 362, pin 360 is in J-shaped groove
Motion can cause sliding sleeve 332 to rotate, or when pin 360 is advanced in some sections of J-shaped groove 362, can limit slippage
The longitudinal stroke of sleeve pipe 332.For example, it may be desired to be to need the change of multiple pressure signals, by sliding sleeve 332 from closing
Displacement is to open position.In this case, in the permission vertical shift of sliding sleeve 332 to before open position, pin 360
Have to pass through some sections of J-shaped groove 362.Alternatively or additionally, once sliding sleeve is placed on such as open position
Such ad-hoc location is put, that is, sliding sleeve is locked in into open position, J-shaped groove 362 can be used to prevent slip cap
The further displacement of pipe 332.In addition, J-shaped groove 362 can enable sliding sleeve be built into it is in the closed position with fully open
Multiple closed positions between position.
Referring next to Fig. 9, the well according to embodiments of the present invention for generally being referred to by reference " 400 " is illustrated therein is
The flowing control sections of lower fluid flow control system.The flowing control sections 400 for illustrating includes base tube 402, and base tube 402 has
Production port 404, bypass port 406 and operation port 407.Sieve interface hull 408 forms annular space 410 together with base tube 402.Stream
Dynamic control housing 412 is solidly associable to sieve the downhole end of interface hull 408, flowing control housing 412 and base tube 402 1
Rise and form annular space 414.The lower end of flowing control housing 412 is solidly associable to support component 416, and support component quilt can
It is fixedly coupled to base tube 402.Flowing control sections 400 also includes multiple flowing controling parts 418, multiple flowing controling parts
418 operation is similar to the operation of above-mentioned flowing controling part 124.In addition, flowing control sections 400 includes bypass sections
420。
Similar to above-mentioned bypass sections 126, bypassing sections 420 includes being illustrated as the piston of ring-shaped slide sleeve pipe 422, should
Ring-shaped slide sleeve pipe is slidably and sealingly arranged in the annular region 424 between support component 416 and base tube 402
In.As illustrated, sliding sleeve 422 includes：Three outer seals 426,428,430, it sealingly engages support component 416
Inner surface；And three inner seals 432,434,436, it sealingly engages the outer surface of base tube 402.Sliding sleeve
422 also extend radially through the bypass port 438 of sliding sleeve 422 including one or more.Bypass port 438 can be around cunning
Dynamic sleeve pipe 422 is circumferentially distributed, and can circumferentially be aligned with one or more bypass ports 406 of base tube 402.Bypass port
438 are arranged between outer seal 428,430 and between inner seal 434,436.Support component 416 includes shoulder
Portion 440, and form annular space 442 together with flowing control housing 412.Support component 416 includes：Multiple operation ports 444, its
Can circumferentially be distributed around support component 416；And multiple bypass ports 446, it can circumferentially divide around support component 416
Cloth, and can circumferentially be aligned with the bypass port 438 of sliding sleeve 422.
The operation of bypass sections 420 will now be described.Different from above-mentioned wherein pressure signal and biasing member on the contrary
The bypass sections of effect, in the present embodiment, pressure signal provides all to what is vertically moved needed for sliding sleeve along two
Energy.In this embodiment, pressure signal has two components, i.e., via annular pressure component, the Yi Jijing of operation port 444
By the loine pressure component of operation port 407.As shown in figure 9, in order to sliding sleeve 422 is operated to open position from closed position
Put, there must be positive differential pressure between loine pressure and annular pressure.In order to sliding sleeve 422 is operated to pass from open position
Closed position, must have positive differential pressure between annular pressure and loine pressure.The present embodiment processing stage well is operated or
Particularly useful during other injection stages of well operation, it is beneficial in that, sliding sleeve 422 is displaced to and is beaten by treatment fluid
Open position and flowing controling part 418 can be bypassed, so as to enable stratum experience bigger flow velocity during the processing operation
And pressure.Once production starts, because annular pressure will be more than loine pressure, so sliding sleeve 422 can be moved from open position
Position to closed position.
Additionally, it may be desirable to be to ensure that sliding sleeve 422 is not displaced to the second position from first position, until pass through
Till the predetermined time.In order to control the first operation of sliding sleeve 422, time delay mechanism 450 can be used to prevent first
The motion of sliding sleeve 422, as most preferably seen in Figure 10, time delay mechanism 450 is, for example, degradable polymer unit
Part, sacrifice element or similar element.In this embodiment, in order that sliding sleeve 422 can open with closed position it
Between shift, time delay mechanism 450 must be removed.In the fluid or well of water for example, such as in well or acid etc
Heat can be used to melt or dissolution time delay device 450 material.Except control sliding sleeve 422 initial motion it
Outward, it may also be desirable to after the initial motion of sliding sleeve 422, prevent sliding sleeve 422 from moving.For example, once slip cap
Pipe 422 is displaced to valve open position from valve closed position, may just expect to prevent sliding sleeve 422 from returning to valve close stance
Put.As most preferably seen in Figure 11, base tube 402 includes multiple teeth 460, and sliding sleeve 422 includes multiple pairing teeth
462, once sliding sleeve 422 has been displaced to valve open position, those described above tooth will coordinate in case sliding stop with pairing tooth
Sleeve pipe 422 is moved towards valve closed position.Although having been described above and showing in Figure 11 certain types of locking component,
It would be recognized by those skilled in the art that other kinds of locking component, such as snap ring, spring loaded pawl and homologue also may be used
Alternatively used, without departing from the principle of the present invention.
Although describing the present invention with reference to exemplary embodiment above, this specification should not in a limiting sense by
Understand.Reference this specification, the exemplary embodiment of the present invention and various modifications and combinations of other embodiment are for ability
Field technique personnel will be apparent.Therefore, appended claims are intended to comprising any such modification or embodiment.
Claims (25)
1. a kind of downhole fluid flow control system, it is operable to along being located between stratum and the inner passage of a pipeline
Fluid flow path is set in the wellbore, and the system includes：
Flowing controling part, in being arranged on the fluid flow path, and is operable to control fluid through the flowing
The flowing of control unit；And
Pressure sensitive valve, in being arranged on the fluid flow path and parallel with the flowing controling part, the response valve is by institute
The change of the pressure signal that valve is received is stated, from first position the second position is independently displaced to, thus enable a fluid to flow through,
The pressure signal also includes the pressure reduction between the boring pressure produced by formation fluid and loine pressure.
2. flow system according to claim 1, wherein, the flowing controling part also includes flowing into control dress
Put.
3. flow system according to claim 1, wherein, the flowing controling part has the stream depending on direction
Resistance.
4. flow system according to claim 1, wherein, the pressure sensitive valve also includes sliding sleeve.
5. flow system according to claim 4, wherein, the pressure sensitive valve also includes biasing element, the skew
Part offsets on the contrary the sliding sleeve with least one component of the pressure signal.
6. flow system according to claim 1, wherein, the pressure signal also includes what is produced by formation fluid
Boring pressure.
7. flow system according to claim 1, wherein, the pressure signal also includes loine pressure.
8. a kind of flowing control is sieved, and it is operable to be set in the wellbore, and the sieve includes：
Base tube, with inner passage；
Filter medium, is disposed about the base tube；
Housing, is disposed about the fluid stream that the base tube is limited between the filter medium and the inner passage
Dynamic path；
At least one flowing controling part, in being arranged on the fluid flow path, and is operable to control fluid process
The flowing of the flowing controling part；And
Pressure sensitive valve, parallel with least one flowing controling part in being arranged on the fluid flow path, the valve rings
The change of the pressure signal that should be received by the valve, from first position the second position is independently displaced to, and thus enables fluid
Enough flow through, the pressure signal also includes the pressure reduction between the boring pressure produced by formation fluid and loine pressure.
9. flowing control according to claim 8 is sieved, wherein, at least one flowing controling part also includes flowing into control
Device processed, the inflow control device has the flow resistance depending on direction.
10. flowing control according to claim 8 is sieved, wherein, the pressure sensitive valve also includes sliding sleeve and biasing element,
The biasing element offsets on the contrary the sliding sleeve with least one component of the pressure signal.
11. flowing control sieves according to claim 10, wherein, the biasing element is selected from mechanical spring and fluid bullet
The group that spring is constituted.
12. flowing control sieves according to claim 8, wherein, the pressure signal also includes what is produced by formation fluid
Boring pressure.
13. flowing control sieves according to claim 8, wherein, the pressure signal also includes loine pressure.
14. flowing control sieves according to claim 8, wherein, the pressure signal also includes what is produced by formation fluid
Pressure reduction between boring pressure and loine pressure.
A kind of 15. downhole tools, it is operable to along the fluid flow path being located between stratum and the inner passage of pipeline
It is set in the wellbore, the instrument includes：
Pressure sensitive valve, is operable to, to respond the change of the pressure signal received by the valve, independently shift from first position
To the second position, wherein, at least one component of the pressure signal is by the boring pressure of formation fluid generation, the pressure
Signal also includes the pressure reduction between the boring pressure produced by formation fluid and loine pressure.
16. downhole tools according to claim 15, also including biasing element, the biasing element and the boring pressure
The valve is offset on the contrary.
17. downhole tools according to claim 16, wherein, the biasing element is selected from mechanical spring and fluid spring
The group of composition.
18. downhole tools according to claim 15, wherein, the pressure signal also includes loine pressure.
A kind of 19. downhole fluid flow control methods, including：
One fluid flow control system is set, and the fluid flow control system has flowing controling part parallel to each other and pressure
Quick valve；
The fluid flow control system is arranged in the wellbore so that the flowing controling part and the pressure sensitive valve are set
In the fluid flow path between stratum and the inner passage of a pipeline；
By the flowing controling part producing formation fluid；
The pressure signal that response is received by the pressure sensitive valve, by the pressure sensitive valve first position is maintained at, wherein, pressure signal
At least one component be by formation fluid produce boring pressure；
The change of the pressure signal is responded, makes the pressure sensitive valve independently be displaced to the second position from the first position；With
And
By the pressure sensitive valve producing formation fluid,
Wherein, the pressure signal also includes the pressure reduction between the boring pressure produced by formation fluid and loine pressure.
20. methods according to claim 19, wherein, respond the pressure signal and the pressure sensitive valve is maintained at into described
First position also includes：The pressure signal is responded, the pressure sensitive valve is maintained in its closed position.
21. methods according to claim 19, wherein, respond the pressure signal and the pressure sensitive valve is maintained at into described
First position also includes：The pressure sensitive valve is set to offset towards open position by spring.
22. methods according to claim 21, wherein, the pressure sensitive valve skew is also included：Institute is made by mechanical spring
State pressure sensitive valve skew.
23. methods according to claim 21, wherein, the pressure sensitive valve skew is also included：Institute is made by fluid spring
State pressure sensitive valve skew.
24. methods according to claim 19, wherein, the change of the pressure signal is responded, the pressure sensitive valve is made from institute
Stating first position and being independently displaced to the second position also includes：The reduction of response boring pressure, makes the pressure sensitive valve from pass
Closed position is independently displaced to open position.
25. methods according to claim 19, wherein, the change of the pressure signal is responded, the pressure sensitive valve is made from institute
Stating first position and being independently displaced to the second position also includes：The change of response loine pressure, makes the pressure sensitive valve from pass
Closed position is independently displaced to open position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2012/027463 WO2013130096A1 (en) | 2012-03-02 | 2012-03-02 | Downhole fluid flow control system having pressure sensitive autonomous operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104145076A CN104145076A (en) | 2014-11-12 |
| CN104145076B true CN104145076B (en) | 2017-04-26 |
Family
ID=49083123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280071026.4A Active CN104145076B (en) | 2012-03-02 | 2012-03-02 | Downhole fluid flow control system having pressure sensitive autonomous operation |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP2820235B1 (en) |
| CN (1) | CN104145076B (en) |
| AU (1) | AU2012371604C1 (en) |
| BR (1) | BR112014020086B1 (en) |
| CA (1) | CA2856828C (en) |
| MY (1) | MY185182A (en) |
| SG (1) | SG11201402645PA (en) |
| WO (1) | WO2013130096A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015308708A1 (en) | 2014-08-29 | 2017-03-16 | Schlumberger Technology B.V. | Autonomous flow control system and methodology |
| WO2016057879A1 (en) * | 2014-10-09 | 2016-04-14 | Schlumberger Canada Limited | Linear shear seal system |
| WO2017023264A1 (en) * | 2015-07-31 | 2017-02-09 | Halliburton Energy Services, Inc. | Annulus access valve |
| CN106555572B (en) * | 2016-11-30 | 2018-12-14 | 中国海洋石油集团有限公司 | A kind of manpower intervention formula pulsed infusion method |
| CA3053244C (en) * | 2017-04-12 | 2021-08-03 | Halliburton Energy Services, Inc. | Multi-position inflow control device |
| CN109236225B (en) * | 2018-09-04 | 2023-10-13 | 成都北方石油勘探开发技术有限公司 | Automatic flow-regulating and controlling water tool for horizontal well |
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| US5697449A (en) * | 1995-11-22 | 1997-12-16 | Baker Hughes Incorporated | Apparatus and method for temporary subsurface well sealing and equipment anchoring |
| US6176311B1 (en) * | 1997-10-27 | 2001-01-23 | Baker Hughes Incorporated | Downhole cutting separator |
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| US6622794B2 (en) * | 2001-01-26 | 2003-09-23 | Baker Hughes Incorporated | Sand screen with active flow control and associated method of use |
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- 2012-03-02 WO PCT/US2012/027463 patent/WO2013130096A1/en active Application Filing
- 2012-03-02 EP EP12869939.4A patent/EP2820235B1/en active Active
- 2012-03-02 SG SG11201402645PA patent/SG11201402645PA/en unknown
- 2012-03-02 MY MYPI2014001504A patent/MY185182A/en unknown
- 2012-03-02 AU AU2012371604A patent/AU2012371604C1/en active Active
- 2012-03-02 BR BR112014020086-6A patent/BR112014020086B1/en active IP Right Grant
- 2012-03-02 CN CN201280071026.4A patent/CN104145076B/en active Active
- 2012-03-02 CA CA2856828A patent/CA2856828C/en active Active
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| US7191833B2 (en) * | 2004-08-24 | 2007-03-20 | Halliburton Energy Services, Inc. | Sand control screen assembly having fluid loss control capability and method for use of same |
| CN101675212A (en) * | 2007-03-01 | 2010-03-17 | Bj服务公司 | Improved system and method for stimulating multiple production zones in a wellbore |
| CN101975049A (en) * | 2008-10-06 | 2011-02-16 | Bj服务公司 | Apparatus and methods for allowing fluid flow inside at least one screen and outside a pipe disposed in a well bore |
Also Published As
| Publication number | Publication date |
|---|---|
| SG11201402645PA (en) | 2014-06-27 |
| EP2820235A4 (en) | 2016-06-29 |
| BR112014020086B1 (en) | 2021-02-02 |
| EP2820235B1 (en) | 2020-02-19 |
| WO2013130096A1 (en) | 2013-09-06 |
| AU2012371604C1 (en) | 2016-07-28 |
| MY185182A (en) | 2021-04-30 |
| BR112014020086A8 (en) | 2017-07-11 |
| EP2820235A1 (en) | 2015-01-07 |
| CA2856828A1 (en) | 2013-09-06 |
| CA2856828C (en) | 2017-09-19 |
| AU2012371604B2 (en) | 2016-01-21 |
| BR112014020086A2 (en) | 2017-06-20 |
| CN104145076A (en) | 2014-11-12 |
| AU2012371604A1 (en) | 2014-05-29 |
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